Home / 2,351.72-3,246.90-1,653.80

Finding the Fourth Proportional to 2,351.72, 3,246.90 and 1,653.80

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Solution

The fourth proportional to 2,351.72, 3,246.90 and 1,653.80 is: 2,283.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,351.72 : 3,246.90 = 1,653.80 : x
  2. Step 2: Convert to fraction form
    2,351.72/3,246.90 = 1,653.80/x
  3. Step 3: Cross multiply
    2,351.72x = 3,246.90 × 1,653.80
  4. Step 4: Simplify right side
    2,351.72x = 5,369,723.22
  5. Step 5: Solve for x
    x = 5,369,723.22/2,351.72
  6. Step 6: Final answer
    x = 2,283.32

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.